PD Ruler

You can also measure your PD by using our PD ruler available here. To measure your PD:
  • Download the PD Ruler (PDF file) and open it in Adobe Reader. Print it at No Scaling or 100% scale setting.
  • Fold the PD ruler along the dotted lines.
  • By looking in the mirror or with the help of a friend, line up the ruler’s zero with your left pupil.
  • Without moving your head or the ruler, mark the ruler where it lines up with your right pupil. This number is your PD.
  • Enter your PD along with your prescription to complete your purchase.